| 二胺结构对线形缩聚型聚酰亚胺性能的影响 |
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| 引用本文： | 孙明明,张斌,张绪刚,李坚辉,王磊. 二胺结构对线形缩聚型聚酰亚胺性能的影响[J]. 高分子材料科学与工程, 2011, 0(6): 72-75 |
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| 作者姓名： | 孙明明 张斌 张绪刚 李坚辉 王磊 |
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| 作者单位： | 哈尔滨工程大学材料科学与化学工程学院;黑龙江省科学院石油化学研究院 |
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| 基金项目： | 黑龙江省杰出青年基金(JC200814);哈尔滨市科技局学科带头人基金项目(2010RFXYG004) |
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| 摘 要： | 以3,3',4,4'-二苯醚二酐(OPDA)与六种不同结构的二胺在N,N-二甲基乙酰胺中通过逐步聚合,合成了线性缩聚型聚酰胺酸,并通过热关环制备了聚酰亚胺,探讨了二胺结构对其热性能及粘接性能的影响.红外分析表明,固化后的聚酰亚胺已经完全酰亚胺化.差示扫描量热(DSC)结果表明,聚酰亚胺具有较高的玻璃化转变温度,并随着结...
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| 关 键 词： | 聚酰亚胺 耐高温 粘接强度 胶粘剂 |
Effects of Different Diamines on Condensation Type Linear Polyimides |
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| Mingming Sun,Bin Zhang,Xugang Zhang,Jianhui Li,Lei Wang. Effects of Different Diamines on Condensation Type Linear Polyimides[J]. Polymer Materials Science & Engineering, 2011, 0(6): 72-75 |
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| Authors: | Mingming Sun Bin Zhang Xugang Zhang Jianhui Li Lei Wang |
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| Affiliation: | 1.College of Material Science and Chemical Engineering,Harbin Engineering University, Harbin 150001,China;2.Heilongjiang Institute of Petrochemistry,Harbin 150040,China) |
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| Abstract: | Six sorts of novel condensation type linear polyimides based on 3,3’,4,4’ oxydiphthalic anhydride (OPDA) and different diamines were synthesized in N,N-dimethyl acetamide via transition polymerization.Effects of structure of diamines on heat resistance and adhesion properties were investigated.Their chemical structures were characterized by IR.DSC curves indicated that PI had high glass transition temperature which decreased along with the increasing of flexibility of chain structures.High thermal resistant property was analyzed by TG which shows the decomposed temperature is exceeded 450℃and 1,4-benzenediamine(PPD)/OPDA-PI has the highest 5%and 10% mass loss temperature decreased as n increased.Adhesion properties of the PI were investigated too.It is found that 4,4’-diaminodiphenyl ether(4,4’-ODA)/OPDA-PI has good shear strength,and can be used as high heat resistant adhesive. |
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| Keywords: | polyimides high temperature resistant adhesion properties adhesives |
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